13705616 has 20 divisors (see below), whose sum is σ = 26737500. Its totient is φ = 6805632.

The previous prime is 13705607. The next prime is 13705619. The reversal of 13705616 is 61650731.

It can be written as a sum of positive squares in 2 ways, for example, as 774400 + 12931216 = 880^2 + 3596^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13705619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 491 + ... + 5258.

It is an arithmetic number, because the mean of its divisors is an integer number (1336875).

Almost surely, 2^13705616 is an apocalyptic number.

13705616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13705616 is a deficient number, since it is larger than the sum of its proper divisors (13031884).

13705616 is a wasteful number, since it uses less digits than its factorization.

13705616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5906 (or 5900 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 13705616 is about 3702.1096688240. The cubic root of 13705616 is about 239.3129424171.

The spelling of 13705616 in words is "thirteen million, seven hundred five thousand, six hundred sixteen".